COLUBEID.E. 251 



Pilemophis sansaniensis (Lartet 1 ). 

 Syn. Cohibet sansaniensis, Lartet 3 . 



The type species. 

 Eab. Europe (France). 



33275. Several vertebrae and portions of ribs, of which at least some 

 belong to this species ; from the Middle Miocene of Sansan 

 (Gers), France. Presented by M. E. Lartet, 1857. 



Genus ELAPHIS, Dumeril & Bibron 3 . 



The vertebrae have broad laminae to the arches, with large zygo- 

 sphenes, oblique costal articulations, and the neural spines tall and 

 obliquely truncated posteriorly. 



Elaphis atavus (Meyer 4 ). 



Syn. Tropidonotus atavus, Meyer 5 . 

 Coluber papyraeeus, Troschel 6 . 



"Referred to this genus by Eochebrune in the * Nouv. Archiv. d. 

 Museum,' ser. 2, vol. iii. p. 291. The upper part of the costal 

 articulation is not acute, and the height of the neural spine is 

 moderate. 



Hab. Europe (Germany). 



The following specimens are from the Lower Miocene ( Upper Oligo- 

 cene) of Roth, near Bonn ; same may, perhaps, be referable to 

 E. elongatus (Troschel 7 ). 



36377. Slab of lignite, showing a considerable portion of the skeleton. 

 (Fig.) Figured by von Meyer in the ' Palaeontographica,' vol. vii. 



pi. xxv. fig. 1. Purchased, 1862. 



36378. Counterpart of the hinder portion of the preceding specimen. 



Same history. 



33065. Slab of lignite, with portion of the skeleton. 



Purchased, 1858. 



1 ' Notice sur la Colline du Sansan,' p. 40 (1851). — Coluber. 



2 Loc. cit. 



3 Erpetologie Generate, vol. vii. pt. 1, p. 241 (1§54). 



4 Palaeontographica, vol. vii. p. 232 (1860). — Tropidonotus. 



5 Loc. cit. G In Fischer's Diss. Zool. p. 26, teste Rochebruue, 

 7 See Eochebrune, op. cit. 



